plib-users

Re: [Plib-users] plib development

[Steve B. <sjb...@ai...>]

Chris Palmer writes:

> How active is PLIB development?

It varies, sometimes we go weeks without significant contributions,
sometimes there will be several in a day.

> Are there folks
> working on this nearly full-time, or is it just
> "as needed" development?  :)

As needed - although some people use it in their full-time jobs.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net
-----BEGIN GEEK CODE BLOCK-----
GCS d-- s:+ a+ C++++$ UL+++$ P--- L++++$ E--- W+++ N o+ K? w--- !O M- V-- PS++ PE- Y-- PGP-- t+ 5 X R+++ tv b++ DI++ D G+ e++ h--(-) r+++ y++++
-----END GEEK CODE BLOCK-----

[Plib-users] plib development

[Chris P. <ch...@ze...>]

Hi...

How active is PLIB development?  Are there folks
working on this nearly full-time, or is it just
"as needed" development?  :)

-Chris

Re: [Plib-users] loading animation from ASE files

[Chris P. <ch...@ze...>]

realized I forgot to answer this.

SkyFlash wrote
> Well, I am not an expert by any means, but that definitely looks
> different than the animations in my ASE files. Is that transform 
> animation keys?

Yes... I'm pretty sure those are transformation animation keys,
which just specify that the object is transformed (rotation, in
my case) at each key.

As long as a ssgTransform is inserted in there, then this could 
be a usable animation technique.  If I get deep enough into this 
project of mine, then maybe I'll write some code for SSG.  :)

-Chris

Re: [Plib-users] loading animation from ASE files

[Chris P. <ch...@ze...>]

SkyFlash wrote
> > If this animation data is not appropriate, how do I export 
> > the right kind of data?
> 
> Ok, here is a pic of the settings we use to export:
> http://www.ralf-mengwasser.de/files/aseexport.jpg

Ahhh... I'm not looking at the options I use, but I think
I was not using the "Force Sample" choice.  Considering that 
you confirmed my suspicion that an "animated mesh" is the
kind of animation needed, then this makes sense, since the 
exporter would only export meshes for each keyframe which
wouldn't be enough useful data.   I get it.  :)

> Use the ssgSelector and write your own animation package using it, its
> much better and faster.

ok, now that I know all the frames will be there, then using
ssgSelector looks like a straight-forward method to animate.
Many thanks for clearing that up for me... :) 

> Be aware it will contain recursive code, look at the examples.

where are the examples?  are they in the source distribution?
I'm using the debian package, so I haven't seen the contents,
yet... ;)

-Chris

RE: [Plib-users] loading animation from ASE files

[SkyFlash <sky...@ch...>]

> So... is this type of animation node not recognized by SSG, 
> or did I just not see the expected data in the print() 
> output?  and, if it really did get loaded, how do I find it?  
> If this animation data is not appropriate, how do I export 
> the right kind of data?

Ok, here is a pic of the settings we use to export:

http://www.ralf-mengwasser.de/files/aseexport.jpg

Well, I am not an expert by any means, but that definitely looks
different
than the animations in my ASE files. Is that transform animation keys?
I don't think that works, I am exporting it too, but our usual
animations
or all mesh based, so "animated mesh" is really what you want I think.

> I assume, I'll have to attach the object below an 
> ssgTimedSelector in order to control it.  Though, I'd rather 
> have it work more like the way the Tween controller operates 
> and control any transformations smoothly between the 
> animation keys.  :)  Is that possible, or will I have to go 
> digging in the library to make changes?

No thats not possible, but yes Id like that too. :P
Thats like the most pressing feature missing, there may be a trick or 
a workaround though...

I wouldnt use ssgTimedSelector though. I used that as well at first
because I thought
its an easy way to control the animations, but in fact, its not. Its not
even working
right. The ssgTimedSelector only works if you have it contain subnodes
that contain the
whole objects animation frames. Now, try creating a basic robot by
placing a box as head,
a box as body and two boxes as legs and then animate it and try to load
it into PLIB.
Look at the structure it has. It SHOULD have one parent ssgTimedSelector
node and then
the anim frames below that. Well, it won't, due to the ASE loader. In
fact, it will be
probably loaded exactly like you don't want it. But be your own judge.
:P

Use the ssgSelector and write your own animation package using it, its
much better and faster.
Be aware it will contain recursive code, look at the examples.

Re: [Plib-users] loading animation from ASE files

[Chris P. <ch...@ze...>]

Thanks for responding so quickly.  I neglected to say that I was 
seeing info in the ASE file that appeared to be about the animation 
sequence.   Here's what it looks like.  Near the top of the file, 
I see this info:

*SCENE {
        *SCENE_FILENAME "Iris17.max"
        *SCENE_FIRSTFRAME 0
        *SCENE_LASTFRAME 120
        *SCENE_FRAMESPEED 30
        *SCENE_TICKSPERFRAME 160
        *SCENE_BACKGROUND_STATIC 0.00000000     0.00000000      0.00000000
        *SCENE_AMBIENT_STATIC 0.00000000        0.00000000      0.00000000
}


and for each object, I see this kind of info:

*TM_ANIMATION {
  *NODE_NAME "Box07"
  *CONTROL_ROT_TCB {  
    *CONTROL_TCB_ROT_KEY 0  0.00000000  0.00000000  -1.00000000  2.09439516  0.00000000  0.00000000  0.00000000  0.00000000  0.00000000
    *CONTROL_TCB_ROT_KEY 19200  -0.08040479  -0.13120875  -0.98808873  1.00492001  0.00000000  0.00000000  0.00000000  0.00000000  0.00000000
  }
}


So... is this type of animation node not recognized by SSG, or did
I just not see the expected data in the print() output?  and, if it
really did get loaded, how do I find it?  If this animation data is
not appropriate, how do I export the right kind of data?

I assume, I'll have to attach the object below an ssgTimedSelector
in order to control it.  Though, I'd rather have it work more like
the way the Tween controller operates and control any transformations
smoothly between the animation keys.  :)  Is that possible, or will
I have to go digging in the library to make changes?

Thanks again!

-Chris


SkyFlash wrote
> You got to use the ASE exporter within 3d studio and export the
> animation too,
> then you can load it into PLIB.
> 
> SkyFlash
> 
> 
> > I've been studying PLIB/SSG for about a week now and
> > intend on using it for a game I'm working on.  I was 
> > able to get some models from 3DStudio to load in the
> > ascii export format (.ASE) and display a scene created
> > from some models.
> > 
> > That part is all good.  I'd like to use animations 
> > created from 3DStudio and the file loader description 
> > page said that animation is supported in the ASE format,
> > but when I used the print() method (detail of 4), I was
> > not able to find any animation info (several objects
> > rotating in different directions in my test file).
> > 
> > Can anyone give me any pointers on how to access
> > animation data from an ASE file?  Is that data ignored
> > or does it have to be formatted some special way from
> > within 3DStudio before it is exported?
> > 
> > Many thanks for any help!
> > 
> > -Chris

RE: [Plib-users] loading animation from ASE files

[SkyFlash <sky...@ch...>]

You got to use the ASE exporter within 3d studio and export the
animation too,
then you can load it into PLIB.

SkyFlash


> I've been studying PLIB/SSG for about a week now and
> intend on using it for a game I'm working on.  I was 
> able to get some models from 3DStudio to load in the
> ascii export format (.ASE) and display a scene created
> from some models.
> 
> That part is all good.  I'd like to use animations 
> created from 3DStudio and the file loader description 
> page said that animation is supported in the ASE format,
> but when I used the print() method (detail of 4), I was
> not able to find any animation info (several objects
> rotating in different directions in my test file).
> 
> Can anyone give me any pointers on how to access
> animation data from an ASE file?  Is that data ignored
> or does it have to be formatted some special way from
> within 3DStudio before it is exported?
> 
> Many thanks for any help!
> 
> -Chris

[Plib-users] loading animation from ASE files

[Chris P. <ch...@ze...>]

Hi...

I've been studying PLIB/SSG for about a week now and
intend on using it for a game I'm working on.  I was 
able to get some models from 3DStudio to load in the
ascii export format (.ASE) and display a scene created
from some models.

That part is all good.  I'd like to use animations 
created from 3DStudio and the file loader description 
page said that animation is supported in the ASE format,
but when I used the print() method (detail of 4), I was
not able to find any animation info (several objects
rotating in different directions in my test file).

Can anyone give me any pointers on how to access
animation data from an ASE file?  Is that data ignored
or does it have to be formatted some special way from
within 3DStudio before it is exported?

Many thanks for any help!

-Chris

Re: [Plib-users] Build error

[John M. <joh...@co...>]

Hey, thanks, I'll give it a go.

John

On Friday, May 9, 2003, at 02:11  PM, mat the prophet wrote:

> John-
>
> Let me be the first to welcome to the painful world of plib and OSX.  
> The good news is that I've done all the leg work to get this stuff to 
> work usefully with ProjectBuilder.  Here are the specifics:
>
> 1.) Sounds like you  need to replace any files with a .m4 extension 
> with the mac versions in /usr/share/autoconf/.  Im pretty sure this is 
> how you get the build script to operate correctly.
>
> 2.) once the stuff is built you'll have a second problem which is that 
> gcc will not enjoy using the plib headers from /usr/include/plib/.  
> For some crazy reason, gcc wont treat them as c++ files and will try 
> to compile them as C which will miserably fail.  I have two solutions 
> for this:
>
> 	A.) add every plib header to your ProjectBuilder target (make sure 
> they are located outside of /usr/include/ ) and compile away!
> 	B.) Compile a framework target for those headers and toss it into 
> /System/Library/Frameworks and add it to the target.
>
> Ive compiled a framework for this stuff that handles all the header 
> stuff but your products wont be cross platform <shrug>.  I can make 
> this public by early next week, or you can teach yourself how to make 
> frameworks (which is pretty cool actually).
>
> 3.) For your targets, after you've dealt with the header fiasco, 
> you'll need to add .a libs to the target also.  Just go to "Add 
> Frameworks...", type in /usr/include/plib/ as the path, and select the 
> libs.
>
> Got all that?  Its not as bad as it may sound, do it once and you'll 
> be a pro.  Email me with any questions you might have, Im happy to 
> help.
>
> mat.
>
>
>
> On Friday, May 9, 2003, at 01:54 PM, John MacMullin wrote:
>
>>
>> Any suggestions to get the configure to run to completion?  Again, 
>> please understand that I am a complete novice with these things.  
>> Your patience is greatly appreciated.
>>
>
>
>
> -------------------------------------------------------
> Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
> The only event dedicated to issues related to Linux enterprise 
> solutions
> www.enterpriselinuxforum.com
>
> _______________________________________________
> plib-users mailing list
> pli...@li...
> https://lists.sourceforge.net/lists/listinfo/plib-users
>

Re: [Plib-users] Build error

[mat t. p. <pr...@tt...>]

John-

Let me be the first to welcome to the painful world of plib and OSX.  
The good news is that I've done all the leg work to get this stuff to 
work usefully with ProjectBuilder.  Here are the specifics:

1.) Sounds like you  need to replace any files with a .m4 extension 
with the mac versions in /usr/share/autoconf/.  Im pretty sure this is 
how you get the build script to operate correctly.

2.) once the stuff is built you'll have a second problem which is that 
gcc will not enjoy using the plib headers from /usr/include/plib/.  For 
some crazy reason, gcc wont treat them as c++ files and will try to 
compile them as C which will miserably fail.  I have two solutions for 
this:

	A.) add every plib header to your ProjectBuilder target (make sure 
they are located outside of /usr/include/ ) and compile away!
	B.) Compile a framework target for those headers and toss it into 
/System/Library/Frameworks and add it to the target.

Ive compiled a framework for this stuff that handles all the header 
stuff but your products wont be cross platform <shrug>.  I can make 
this public by early next week, or you can teach yourself how to make 
frameworks (which is pretty cool actually).

3.) For your targets, after you've dealt with the header fiasco, you'll 
need to add .a libs to the target also.  Just go to "Add 
Frameworks...", type in /usr/include/plib/ as the path, and select the 
libs.

Got all that?  Its not as bad as it may sound, do it once and you'll be 
a pro.  Email me with any questions you might have, Im happy to help.

mat.



On Friday, May 9, 2003, at 01:54 PM, John MacMullin wrote:

>
> Any suggestions to get the configure to run to completion?  Again, 
> please understand that I am a complete novice with these things.  Your 
> patience is greatly appreciated.
>

[Plib-users] Build error

[John M. <joh...@co...>]

I am in inexperienced UNIX user and I am trying to get plib 1.6.0 to 
build under the MAC OX.  10.2.6.  I entered the following in the Unix 
terminal.

[ip68-3-13-109:~/Desktop/plib-1.6.0] johnmacmullin% ./autogen.sh
Running aclocal
Running automake
Running autoconf
======================================
Now you are ready to run './configure'
======================================
[ip68-3-13-109:~/Desktop/plib-1.6.0] johnmacmullin% ./configure
checking for a BSD compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
/Users/johnmacmullin/Desktop/plib-1.6.0/missing: Unknown `--run' option
Try `/Users/johnmacmullin/Desktop/plib-1.6.0/missing --help' for more 
information
configure: WARNING: `missing' script is too old or missing
checking for mawk... no
checking for gawk... no
checking for nawk... no
checking for awk... awk
checking whether make sets ${MAKE}... yes
includedir changed to ${prefix}/include/plib libdir is 
${exec_prefix}/lib
checking for gcc... gcc
checking for C compiler default output... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for executable suffix...
checking for object suffix... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of gcc... gcc
checking how to run the C preprocessor... gcc -E
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking how to run the C++ preprocessor... g++ -E
checking for a BSD compatible install... /usr/bin/install -c
checking for ranlib... ranlib
checking build system type... configure: error: cannot guess build 
type; you must specify one
[ip68-3-13-109:~/Desktop/plib-1.6.0] johnmacmullin%

Any suggestions to get the configure to run to completion?  Again, 
please understand that I am a complete novice with these things.  Your 
patience is greatly appreciated.

John

[Plib-users] Config Problem

[Ludwig A. <lj...@gm...>]

Dear people,

im trying to install plib-1.6.0 on my linux(SUSE 7.2) box. but the 
./configure- script always exits with the message 

checking for GL/gl.h... yes
checking for GL/glut.h... no
configure: error: GLUT header file not found

but: glut.h sits next to gl.h, in /usr/include/GL/.
(i believe this is the file from the "mesaglut-devel"-package which i have 
installed.)

i had the same problem with gl.h, but this could be resolved by copying a 
"gl.h" file from an nvidia driver package (1541), which i (or the great linux 
directory goddess called "make install") installed in a somewhat strange 
place ( /usr/share/doc/packages/andsoon/...).

hoping to address the right people, i would like to ask the following two 
questions:

1. what can i do to get things to work? 

2. theoretically interesting: why doesnt ./configure find glut.h, when it 
finds gl.h and these two files are in the same directory?

thank you in advance for your help. i think my question is a little trivial, 
but i am quite unexperienced with those directory-package dependency-affairs.

ludwig

[Plib-users] adding customised pui to Linux include folder?

[Simon <sim...@ho...>]

Hi again, the app that I made in Borland on windows used some modified
plib files.   I downloaded the plib 1.6 source from the site again (in
Linux this time though)  I didn't install them but instead just copied
my include/plib files into usr/include.  All I want to do is build my
app on Linux.  With no knowledge of manually making files I opted to use
kylix3 open or kylix3 enterprise trial.  After building a new project
and adding the files in the same way I did in Borland I get a missing
header file problem on building.  What I was wondering was:

 

1.	How do I install a customised plib on Linux?  Is it a case of
installing plib 1.6 "as is" from your site and then copying my files
over the installed ones?  I mainly use pui out of the whole of plib and
have replaced almost all the 1.6 files with the latest cvs released
files.  On windows installing these was just a case of copying over the
include/plib/pui files.  

 

2.	Does everyone manually make make files in Linux or is there a
nice c++ ide that I can use to do it for me, kylix3 seems a bit juttery.

 

3.	How can I package my application so that it can be used as a
source distribution and also as a binary distribution?

 

-Thanks in advance

-Simon

 

ps. Thanks to Steve for his earlier reply, just finished installing glut
when I read it.

Re: [Plib-users] plib app from windows to linux

[Steve B. <sjb...@ai...>]

Simon wrote:
> Hi all, I?ve made my application with plib and Borland builder 6 on my 
> windows platform.  I want to make my application work on linux.  I?ve 
> got redhat linux 7.3 installed on a vmware machine.   I was hoping you 
> could help me out by suggesting things I need to do.  I should point out 
> that I have no knowledge of programming under linux.    Here are my 
> questions:

Well, if you used only PLIB calls (and perhaps some OpenGL and GLUT) then
it should port to Linux with minimal problems.  However, if you used a ton
of Windoze API calls for things like opening windows and driving the GUI,
then you may have a major rewrite on your hands.

> Does plib work with redhat linux 7.3 straight out of the box or do I 
> need to modify one or both installations?

No - it should work straight out of the box.

> What do I use to program c++ on Linux, is it gcc?

Yes - the C++ compiler is called 'g++' - but it's really just gcc.

> Is glut installed on Linux as default or do I need to install it myself?

I don't think RedHat installs it by default - but I could be wrong about that.
You should be able to find an RPM for it - but (as with ALL other libraries),
be sure to specify that you want the DEVELOPER version of the RPM - otherwise
it probably won't install the header files.

> I?m a little confused on what I read about openGL implementations on 
> Linux.  I keep hearing about mesa.  I?ve not modified the openGL library 
> myself within my app so do I need to install the openGL source and 
> compile it on Linux or can I just get hold of some binaries?

Mesa is an OpenSourced implementation of OpenGL - depending on what graphics
card you have, you may want to use Mesa - or some other OpenGL driver.

If you have an ATI Radion or an nVidia card - use the drivers on their
respective web sites.  Otherwise you'll probably want Mesa.  There are a
couple of 3D cards that don't have free drivers (eg 3DLabs) and you'd
have to *buy* a 3rd party commercial driver from a company like XiG (they
charge a small fortune though - it would be cheaper to buy a different
graphics card!).  There are also some 3D cards which are completely
unsupported under Linux.

What hardware do you have?
---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net
-----BEGIN GEEK CODE BLOCK-----
GCS d-- s:+ a+ C++++$ UL+++$ P--- L++++$ E--- W+++ N o+ K? w--- !O M- V-- PS++ PE- Y-- PGP-- t+ 5 X R+++ tv b++ DI++ D G+ e++ h--(-) r+++ y++++
-----END GEEK CODE BLOCK-----

[Plib-users] plib app from windows to linux

[Simon <sim...@ho...>]

Hi all, I've made my application with plib and Borland builder 6 on my
windows platform.  I want to make my application work on linux.  I've
got redhat linux 7.3 installed on a vmware machine.   I was hoping you
could help me out by suggesting things I need to do.  I should point out
that I have no knowledge of programming under linux.    Here are my
questions:

 

Does plib work with redhat linux 7.3 straight out of the box or do I
need to modify one or both installations?

What do I use to program c++ on Linux, is it gcc?

Is glut installed on Linux as default or do I need to install it myself?

I'm a little confused on what I read about openGL implementations on
Linux.  I keep hearing about mesa.  I've not modified the openGL library
myself within my app so do I need to install the openGL source and
compile it on Linux or can I just get hold of some binaries?

 

Anyone have a tutorial or guide that might help?

 

I read this somewhere on how to find what openGL version I have
installed under Linux.

 

Rpm -qa | grep glibc

 

Gives me:

 

Compat-glic-6.2-2.1.3.2

Glibc-kernheaders-2.4-7.14

Glibc-common-2.2.5-34

Glibc-devel-2.2.5-34

Glibc-2.2.5-34

 

On windows I used the openGL binary that came with XP.  

 

Sorry for asking really dumb questions but I really don't have a clue
about what I'm supposed to do.

 

Thanks in advance

-simon

[Plib-users] plib app from windows to linux

[sickz6sickz <sic...@ho...>]

Hi all, I've made my application with plib and Borland builder 6 on my
windows platform.  I want to make my application work on linux.  I've
got redhat linux 7.3 installed on a vmware machine.   I was hoping you
could help me out by suggesting things I need to do.  I should point out
that I have no knowledge of programming under linux.    Here are my
questions:

 

Does plib work with redhat linux 7.3 straight out of the box or do I
need to modify one or both installations?

What do I use to program c++ on Linux, is it gcc?

Is glut installed on Linux as default or do I need to install it myself?

I'm a little confused on what I read about openGL implementations on
Linux.  I keep hearing about mesa.  I've not modified the openGL library
myself within my app so do I need to install the openGL source and
compile it on Linux or can I just get hold of some binaries?

 

Anyone have a tutorial or guide that might help?

 

I read this somewhere on how to find what openGL version I have
installed under Linux.

 

Rpm -qa | grep glibc

 

Gives me:

 

Compat-glic-6.2-2.1.3.2

Glibc-kernheaders-2.4-7.14

Glibc-common-2.2.5-34

Glibc-devel-2.2.5-34

Glibc-2.2.5-34

 

On windows I used the openGL binary that came with XP.  

 

Sorry for asking really dumb questions but I really don't have a clue
about what I'm supposed to do.

 

Thanks in advance

-simon

Re: [Plib-users] Use of PLIB in CAD like application

[Steve B. <sjb...@ai...>]

Gopal Mor wrote:

> - I should be able to switch between ortho and perspective projections
> 
>  -I should be able to zoom in/ zoon out.
> 
> - I should be able to set line color and fill color ( preferable fill 
> pattern )
> 
> - Hide/unhide a type of polygons ( e.g. all rectangles )
> 
> - When mouse is moving, it should display the current position (only x 
> and y) in the scene along with cursor in Ortho projection.
> 
>  
> 
> Will PLIB ( specially SSG ) be sufficient for above requirements ?

The (sadly defunct) PrettyPoly project did all of those things with SSG - although
it did take a little trickery.

Download the CVS version of PrettyPoly (http://prettypoly.sf.net) to see how
it was done.  I forget the details.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net
-----BEGIN GEEK CODE BLOCK-----
GCS d-- s:+ a+ C++++$ UL+++$ P--- L++++$ E--- W+++ N o+ K? w--- !O M- V-- PS++ PE- Y-- PGP-- t+ 5 X R+++ tv b++ DI++ D G+ e++ h--(-) r+++ y++++
-----END GEEK CODE BLOCK-----

[Plib-users] Use of PLIB in CAD like application

[Gopal M. <mor...@ya...>]

Hi, I am trying to use PLIB in an application, in which I need to display some lauouts like autocad with ortho as well as perspective projections. The layout that I need to display contains a set of polygons with different vertexes. In both the projections, - I should be able to switch between ortho and perspective projections -I should be able to zoom in/ zoon out. - I should be able to set line color and fill color ( preferable fill pattern )- Hide/unhide a type of polygons ( e.g. all rectangles )- When mouse is moving, it should display the current position (only x and y) in the scene along with cursor in Ortho projection. Will PLIB ( specially SSG ) be sufficient for above requirements ? If above requiements can be fulfilled using PLIB, then I can write a loader which will convert my data into PLIB scene. Thanks in advance. Gopal  

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[Plib-users] can anyone get more than 40 digits in an input box?

[Simon <sim...@ho...>]

Hi all, I've got this annoying problem were  if I type more than 38-40
digits into either an puInput or a puLargeInput it will crash.  If
theres any other character in there its fine.  Is there a way around
this?  I cant seem to find a callback for when a key is pressed.  I
don't really want to modify the puInput class but just in my code.  I
thought if I could link a callback to each key press then I could stop
the user entering data when say 30 characters had been entered.  Any
ideas?

 

-simon 

Re: [Plib-users] Trouble when changing resolution

[Steve B. <sjb...@ai...>]

jeanfrancois.chalbos wrote:

> I have a problem when I change my program's resolution.
> ==> TEXTURES DISAPPEARED
> 
> I used glut and ssg (with 3ds import objects).
> 
> It's happen when I destroy the current window
> and create another one.

If you delete the current rendering context, then all
existing textures will be lost because OpenGL deletes
them.  SSG doesn't know you did this - so it presumes
the textures are still there.

The only thing I can think of is to ensure that textures
are shared between graphical contexts (I think that's the
default with GLUT) - and to make sure to open the new
rendering context BEFORE you delete the old one.

I've never actually tried that - but in theory it should
work.

---------------------------- Steve Baker -------------------------
HomeEmail: <sjb...@ai...>    WorkEmail: <sj...@li...>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net    http://tuxaqfh.sf.net
            http://tuxkart.sf.net http://prettypoly.sf.net
-----BEGIN GEEK CODE BLOCK-----
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-----END GEEK CODE BLOCK-----

R: [Plib-users] Trouble when changing resolution

[Paolo L. <p.l...@ci...>]

jeanfrancois.chalbos wrote:
>
> I have a problem when I change my program's resolution.
> ==> TEXTURES DISAPPEARED
>
> I used glut and ssg (with 3ds import objects).
> It's happen when I destroy the current window
> and create another one.

Jean Francois,

as to my knowledge of GLUT&OpenGL under Windows, textures are resources of
the window context, so when you destroy a window you loose all its
resources. Textures loading during ssgLoad implicitly occurs in the current
window context (which has to be created before calling ssgInit), so the
window you keep open when ssgLoad is the one which holds all texture data.
My suggestion is to not destroy the first window, yet possibly hide it
(don't know the GLUT hide function) and, after had open the new window,
share the textures between the two by means of the wglShareLists function.
The following code should help you:

//
// till now you have the old window open
//
HGLRC oldwin_ctx = wglGetCurrentContext();
//
// open the new window
//
glutCreateWindow( "..." );
HGLRC newwin_ctx = wglGetCurrentContext();
//
// share textures (and display list also) between the two
//
if ( !wglShareLists( newwin_ctx, oldwin_ctx ) )
	fprintf( stderr, "sharing error %d\n", GetLastError() );

Obviously this approach is also suitable when one wants to load data once
and display in two or more windows.

I red somewhere that in GLX texture sharing between windows is the default
instead.

Greetings -

Paolo Leoncini

[Plib-users] Trouble when changing resolution

[jeanfrancois.chalbos <jea...@wa...>]

Hi everybody,

Plib is an excelent library :-)


I have a problem when I change my program's resolution.
=3D=3D> TEXTURES DISAPPEARED

I used glut and ssg (with 3ds import objects).=20
It's happen when I destroy the current window
and create another one.

Can you help me ?

Thank you in advance

JEF 

[Plib-users] puLargeInput wrappable text fix.

[sickz6sickz <sic...@ho...>]

Hi all, I've made a fix for what I think is a bug in the puLargeInput
class.  I stumbled across this when I was using a large input with
wrappable text.  Sometimes when at the beginning of an empty input if
the user tried to go left (left arrow) then it would crash my
application out.  There wasn't anything to catch if it was wrappable in
one section of the code.  Im using puLargeInput.cxx,v 1.46.  

 

In the checkKey method, within the key switch statement I amended as
follows:

 

case PU_KEY_LEFT   :

                        case PU_KEY_RIGHT  :

                        if ( key == PU_KEY_LEFT )

                                    {

                        //If bottem slider code done by DM.  This stops
it crashing out sometimes when wrappable text is used.

                        //there is no bottem scrollbar with wrapped text
and this would make the app die when the user left

                        //cursored before the start of the 1st line.
This is fixed.

                                    cursor_position-- ; /* Left key
pressed */

                                    if ( bottom_slider )

                                                {

                                                if (old_text [
cursor_position ] == '\n')

 
bottom_slider->setValue( ( (prev_line_width - box_width)<0 ) ? 0.0f :
float(prev_line_width+10) /max_width);

                                                /* If the cursor is
going off the left edge of the box, scroll left. */

                                                else if
((bottom_value*max_width) > line_width_to_cursor+5) {

 
bottom_slider->setValue( ((bottom_value*max_width)-(box_width/2)-5)<0 ?
0.0f :

 
((bottom_value*max_width)-(box_width/2)-5)/max_width ) ;

                                                            }

                                                }

                                    }

                        else {

                                    cursor_position++ ; /* Right key
pressed */

                                    if ( bottom_slider )

                                                {

                                                if (old_text [
cursor_position-1 ] == '\n')

 
bottom_slider->setValue(0.0f) ;

                                                else if
((bottom_value*max_width)+(box_width) < line_width_to_cursor+5) {

 
bottom_slider->setValue(
((bottom_value*max_width)+(box_width/2)+5)/max_width ) ;

                                                            }

                                                }

                                    }

                        select_start_position = select_end_position =
cursor_position ;

                        break ;

 

Hope I helped

-simon

Re: [Plib-users] Re: Re: plib installation troubles

[torcs <to...@fr...>]

Michael Douglas wrote:
> 
> 
> 
> 
> that does sound right, i recently downloaded the new nvidia drivers as 
> well.
> 
> x11-devel rpm? i cant seem to find this anywhere, exactly what would it 
> be called? the closest i can find is x11ada-devel is this right? (this 
> doesnt change anything)

Sorry, it was XFree86-devel.

> 
> i dont really know what i'm talking about :D
> 
> thanks,
> Mike D
> 
> 


Bye,
Eric.
-- 
=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
                        TORCS
             The Open Racing Car Simulator
         AKA The Other Release Coming Soon (Skin'r)
                  http://torcs.org
=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=

[Plib-users] Re: Re: plib installation troubles

[Michael D. <ran...@ho...>]

that does sound right, i recently downloaded the new nvidia drivers as well.

x11-devel rpm? i cant seem to find this anywhere, exactly what would it be 
called? the closest i can find is x11ada-devel is this right? (this doesnt 
change anything)

i dont really know what i'm talking about :D

thanks,
Mike D



>From: pli...@li...
>Reply-To: pli...@li...
>To: pli...@li...
>Subject: plib-users digest, Vol 1 #496 - 2 msgs
>Date: Sat, 26 Apr 2003 20:06:49 -0700
>
>Send plib-users mailing list submissions to
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>Today's Topics:
>
>    1. plib installation troubles (Michael Douglas)
>    2. Re: plib installation troubles (torcs)
>
>--__--__--
>
>Message: 1
>From: "Michael Douglas" <ran...@ho...>
>To: pli...@li...
>Date: Sun, 27 Apr 2003 09:28:09 +1200
>Subject: [Plib-users] plib installation troubles
>Reply-To: pli...@li...
>
>'hoping this is the right place'
>
>i hav mandrake linux 9.0 and i'm installing plib so i can use the flight
>simulator, Flight Gear.  I can unpack plib and run ./configure but when i
>then type make it gets about halfway then comes up with a whole lot of
>errors like this-
>/usr/include/GL/glu.h:318: syntax error before `void'
>/usr/include/GL/glu.h:320: syntax error before `GLAPIENTRY'
>can sum1 please tell me what this means and suggest how i can fix it and 
>get
>plib going so i can run flight gear?
>any help greatly appreciated.
>sry if this is the wrong place to be posting this stuff,
>Mike D
>
>
>_________________________________________________________________
>Download MSN Messenger @  http://messenger.xtramsn.co.nz   - talk to family
>and friends overseas!
>
>
>
>--__--__--
>
>Message: 2
>Date: Sun, 27 Apr 2003 00:06:22 +0200
>From: torcs <to...@fr...>
>To: pli...@li...
>Subject: Re: [Plib-users] plib installation troubles
>Reply-To: pli...@li...
>
>Michael Douglas wrote:
> > 'hoping this is the right place'
> >
> > i hav mandrake linux 9.0 and i'm installing plib so i can use the flight
> > simulator, Flight Gear.  I can unpack plib and run ./configure but when
> > i then type make it gets about halfway then comes up with a whole lot of
> > errors like this-
> > /usr/include/GL/glu.h:318: syntax error before `void'
> > /usr/include/GL/glu.h:320: syntax error before `GLAPIENTRY'
> > can sum1 please tell me what this means and suggest how i can fix it and
> > get plib going so i can run flight gear?
> > any help greatly appreciated.
> > sry if this is the wrong place to be posting this stuff,
> > Mike D
> >
>
>I had that once on my Mdk 9.0 after installing new Nvidia
>drivers.
>
>I did not investigate much, but after reinstalling
>(with --force) the X11-devel rpm every thing was OK.
>
>Bye,
>Eric Espie.
>--
>=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
>                         TORCS
>              The Open Racing Car Simulator
>          AKA The Other Release Coming Soon (Skin'r)
>                   http://torcs.org
>=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=
>
>
>
>
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>
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